<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>

    <!-- 
      当前html的访问方式是： http://localhost:3000/about.html
     -->

    <!-- http://localhost:3000/base -->
    <link rel="stylesheet" href="../base" />

    <!-- http://localhost:3000/css/index.css -->
    <link rel="stylesheet" href="./css/index.css" />
  </head>
  <body>
    <h1>我是关于页面</h1>
  </body>
</html>
